title: Binding of C3b proceeds by a transesterification reaction at the thiolester site.
mesh_terms: D000595:Amino Acid Sequence; D002250:Carbon Radioisotopes; D003176:Complement C3 / Q000378:metabolism; D003179:Complement C3b / Q000378:metabolism*; D005944:Glucosamine; D005990:Glycerol; D006801:Humans; D010446:Peptide Fragments / Q000032:analysis; D011485:Protein Binding; D013395:Sucrose; D013438:Sulfhydryl Compounds; D013912:Threonine; D014357:Trypsin
chemical_list: D002250:Carbon Radioisotopes; D003176:Complement C3; D010446:Peptide Fragments; D013438:Sulfhydryl Compounds; D013912:Threonine; D013395:Sucrose; D003179:Complement C3b; D014357:Trypsin; D005944:Glucosamine; D005990:Glycerol